“ObamaCare is a broken mess. Piece by piece we will now begin the process of giving America the great HealthCare it deserves!” he added.

Trump’s action was supported by Rep. Jim Jordan, R-Ohio, a member of the House Freedom Caucus

“These payments are in fact illegal. The president said he is no longer going to engage in making these payments, so let’s move forward and do what we should have done a long time ago,” Jordan said Friday on CNN.

“Obamacare is a mess and we need to replace the whole thing, repeal the whole thing,” he added.

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Under Obamacare, the government has been paying insurance companies about $7 billion a year in subsidies that help lower insurance costs to consumers.

However, the White House said there is no budget allocation for those payments, and that they can no longer legally be made.

“Based on guidance from the Department of Justice, the Department of Health and Human Services has concluded that there is no appropriation for cost-sharing reduction payments to insurance companies under Obamacare,” White House press secretary Sarah Huckabee Sanders said in a statement, as reported by CNBC.

“In light of this analysis, the Government cannot lawfully make the cost-sharing reduction payments. …The bailout of insurance companies through these unlawful payments is yet another example of how the previous administration abused taxpayer dollars and skirted the law to prop up a broken system,” her statement said.

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Trump’s action will be challenged by at least some states.

Xavier Becerra, California’s attorney general, called Trump’s action “sabotage,” and promised that a lawsuit was coming.

Democrats attacked Trump’s decision, which he has been discussing for months as an option in the event Congress did not pass an overhaul of Obamacare.

“It is a spiteful act of vast, pointless sabotage leveled at working families and the middle class in every corner of America,” said Senate Minority Leader Chuck Schumer, D-N.Y. and House Minority Leader Nancy Pelosi, D-Calif., in a joint statement. “Make no mistake about it, Trump will try to blame the Affordable Care Act, but this will fall on his back and he will pay the price for it.”